Cap or closure for containers and method of fabricating the same



Aug. 27 i929. PORANSKE 11,?26322 CAP OR CLOSURE FOR CONTAINERS AND METHOD OF FABRICATING THE SAME Filed Sept. 2, 1927 I'IIIIIII'I'I' Patented Aug. 27, 1929.

UNITED STATES" PATENT OFFICE;

WALTER PORANSKI, or CHICAGO, ILLINOIS, ASSIGNOR 'ro .rosnrn time, on NEW YORK, N: Y

CAP OR CLOSURE'FOR CONTAINERS AND METHQDQF FABRICA'IING THE SAME.

'Application med September 2,; 1552?. Serial no. 217,275.

My present invention relates to methods of fabricating caps or closures for bottles and'like containers, to blanks for such caps and closures, and to the resulting caps or closures, and aims to devise methods of the general character specified which are easy, convenient and economical to practise, which result in blanks suitable for the caps or closures of the present invention,and by means of which caps or closures may be made which are very suitable for the intended purpose. Other objects and advantages of the methods and resulting products of the present invention will in part be pointed out in detail hereinafter and will in part be obvious to those skilled in the art to which the present invention relates.

In the accompanying specification I shalldescribe and in the annexed drawing more or less diagrammatically show an illustrative embodiment of the method of the present invention. In the accompanying specification I shall also describe and in the annexed' drawing show a blank and resulting cap or closure embodying the principles of the present invention. It. is, however, to be clearly understood that m invention is not limited to the s ecific em odiments thereof herein shown and described for purposes of illustration only. It is further to be understood that the method is not limited to the fabrication of the aforesaid illustrative embodiment of the products of the present in-- I outlined thereon a plurality of blanks made in accordance with invention;

Fig. 2 is a cross sectional view of a cap or closure embodying the principles of the present. invention and shown partially completed;

Fig. 3 is a view similar to Fig. 2; and

Fig. 4 is a longitudinal sectional .view of the completed cap or closure and associated bottle br container.

Referring now to the aforesaid illustrative embodiments of the present invention, and more particularly to the aforesaid illustraprinciples of the present tive embodiment of the method, as more or less diagrammatically illustrated in the annexed drawing, I first take a sheet 10 of any suitable metal or metallic material, such as a sheet of brass, tin plate, mickel plate,

aluminum or German silver, for example, and then stamp from the same asenesof adjacent, complementary blanks, generally, designated by reference character 11. 'Each of the blanks 11 preferably comprises the main-body portion 12 and a plurality of sub- ,stantially diammetrically oppositely disto provide the same with the cap portion 12,

the depending marginal flange portion 12", and the depending tabs 13. The article at this stage of its manufacture is illustrated in Fig. 2 of the drawing.

The tabs 13 are now provided with a binding portion or surface, preferably in the form of a thread 13, and are thereafter folded into and within the depending marginal flange portion 12". i

This completes the formation of the cap. or closure which is shown in its final com-'' pleted position in Fig. 3 of the drawing.

The completed cap or closure, which has been designated by reference character 20,

may be successfully used-with the bottle or other container illustratedin Fig. 4 of the drawing and there designated by reference character 30. The bottle or other container 30 comprises the .main body portion 31 and the neck portion 32 provided with the.

thread sections 33 for cooperation with the corresponding thread sections 13' positioned within the depending marginal flange portion 12 of the cap or closure 20. This completes the description of-th'e af resaid illustrative embodiment of the method of the present invention." It will be noted that said method is very easy and convenient to quired, and yields a very desirable cap or closure. The blanks are very suitable for the intended purpose and make maximum use of the practise, iseconomical in the material re- A provided.

sure a fractional turn in a clockwise d1- material, including material which would otherwise go to waste. The resulting cap or closure is very simple in construction, may be easily, conveniently and economically fabricated, and may be readily applied to and as readily removedfrom the bottle or other container with which it is intended rection, the cap will be tightly screwed into place on the neck 32 of the container 30,

- thus locking the cap or closure in place.

When it is desired to remove the ca 9. or closure, the same is given a slight or ractional turn in the reverse or counter-clock wise direction to unscrew the cap or closure,

I thus to unfasten the same, after which it may readily be removed. It will be noted that the device hasmany advantages in use and many conveniences in operation.

Other advantages and superiorities of the devices of the present invention will readily occur to those skilled in the art to which the present invention relates.

, NVhatI claim as lows: j

1. A cap or closure for bottles or like conmy invention is as fol-,

tainers including a central cap portion, adepending marginal flange, and opposed tabs formed on and depending from the flange, the ends of the tabs being curled to form binding portions, the curl of one tab being spaced a greater distance from the central cap portion than the other.

2. A cap or closure for bottles or like containers including a central cap portion, a depending marginal flange, and opposed tabs formed on and depending from the flange, the ends of. the tabs being curled inwardly to a position beneath the central cap portion and the curl of one tab being spaced a greater distance from the inner face of the central cap portion than the other.

3. The method of forming caps or closures for bottles or like containers which consists in cutting a blank from a sheet of material, the cut. blank having opposed tabs projectingfrom the periphery thereof, then forming the blank to provide a central cap portion and a depending marginal flange, the tabs projecting downwardly from the flange, and finally curling the ends of the tabs inwardly to lie beneath the central cap portion, the curl of one tab being spaced at greater distance from the inner face of the central cap portion than is the other.

In testimony, whereof, I have signed my name to this specification this 12th dayot August, 1927.

I WALTER PQRANS KI. 

